Abstract: This paper briefly introduces the development background of Sinopec CBL ethylene cracking furnace technology, the development implemented in each stage, the technical characteristics of various types of CBL cracking furnaces, the technical level achieved and the application of CBL ethylene cracking furnaces. The general considerations and specific application cases of CBL cracking furnace serialization are introduced. The different schemes of SEI in modular design,the relevant situation of SEI in standardized design of cracking furnace and how to combinewith new furnace revamp of cracking furnace are introduced.

Key words: CBL Cracking Furnace, standard design, series design, module design